Te. Goodwin et al., A SIMPLE PROCEDURE FOR SOLID-PHASE SYNTHESIS OF PEPTIDE NUCLEIC-ACIDSWITH N-TERMINAL CYSTEINE, Bioorganic & medicinal chemistry letters, 8(16), 1998, pp. 2231-2234
Problems were encountered during attempts to prepare N-terminal cystei
ne-substituted peptide nucleic acids (PNAs) from commercially availabl
e, Fmoc-protected monomers. These problems have been surmounted by the
use of an S-t-butylmercapto protecting group on the cysteine moiety.
The solid-phase syntheses are carried out via a simplified procedure w
hich should be generally useful for manual PNA synthesis. (C) 1998 Els
evier Science Ltd. All rights reserved.